The latest firmware for Kindle 3, Kindle 4, Kindle Touch and Kindle PaperWhite added the support for the new AZW3
format is not actually handled by Amazon devices but the latest mobi
version handles many of the ePub features and an ePub converted to mobi8 with calibre looks very similar to the original.
However there's an important missing feature on kindles: hyphenation. Actually there's an hack (by Ixtab) for Kindle Touch an Kindle Paperwhite which adds hyphenation support for the older mobi
format, but it cannot work for AZW3
The weird thing is that hyphens can already be handled
by the new kindle format. If you manually insert the ­
HTML entity (soft hyphen
) between the syllables in an ePub
book and convert it to AZW3
they're correctly rendered on the screeen. And it won't affect indexing and searching. Here is a post with a sample
. Yes, it's definitely not elegant and files will be larger but at the moment it's the only option to have hyphenation on this format (and more in general, on un-hacked e-ink Kindles).
It would then be nice to have a plugin (or to modify an existing one) to add/remove this sort of "hyphenation emulation" to ePubs
before conversion to mobi8